Support linking statically with GnuTLS on OS X


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4158 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/vncviewer/Makefile.am b/unix/vncviewer/Makefile.am
index 9690015..2b1e966 100644
--- a/unix/vncviewer/Makefile.am
+++ b/unix/vncviewer/Makefile.am
@@ -16,6 +16,6 @@
 	$(top_builddir)/common/rfb/librfb.la \
 	$(top_builddir)/common/network/libnetwork.la \
 	$(top_builddir)/common/rdr/librdr.la \
-	@X_PRE_LIBS@ @X_LIBS@ -lXext -lX11 @X_EXTRA_LIBS@ # @LIBINTL@
+	@X_PRE_LIBS@ @X_LIBS@ -lXext -lX11 @X_EXTRA_LIBS@ @GNUTLS_LIBS@ # @LIBINTL@
 
 EXTRA_DIST = vncviewer.man